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Description

setting for instance u0/BU2/U0_fblk_inst_few_inst_fed1_inst_fifoprim_sngfifo (of type FIFO16) is not valid."

Solution

This error occurs using FIFO Generator v1.1 with the ISE 6.3i Service Pack 1 (SP1) or Service Pack 2 (SP2) software. The error is caused by new DRC (Design Rule Check) introduced in the software starting with ISE 6.3i SP1. You can prevent this error by using ISE 6.3i without any Service Packs.

FIFO Generator v2.0 Core will include Programmable Full and Programmable Empty flags that will eliminate this error. FIFO Generator v2.0 will be released with IP Update 4 in November 2004.